APA (7th ed.) Citation

King, K. L. (2003). What is gnosticism? The Belknap Press of Harvard Univerity Press.

Chicago Style (17th ed.) Citation

King, Karen L. What Is Gnosticism? Cambridge: The Belknap Press of Harvard Univerity Press, 2003.

MLA (8th ed.) Citation

King, Karen L. What Is Gnosticism? The Belknap Press of Harvard Univerity Press, 2003.

Warning: These citations may not always be 100% accurate.